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Home/Questions/Amazing solutions for the ''error in as.date.numeric(value) : 'origin' must be supplied'' error.
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Sasha O'Neill
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Sasha O'Neill
Asked: May 18, 20222022-05-18T21:46:59+00:00 2022-05-18T21:46:59+00:00In: r

Amazing solutions for the ”error in as.date.numeric(value) : ‘origin’ must be supplied” error.

  • 34

I have the following R code, but I do not know how to find the correct result. Why has this problem occurred, and how can it be solved? Here is the code that I am running:

axis.Date(1,sites$date, origin="1970-01-01")

And this is the error text I receive:

Error in as.Date.numeric(x) : 'origin' must be supplied
origin must be supplied
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    lyytutoria Expert
    2022-06-28T02:33:34+00:00Added an answer on June 28, 2022 at 2:33 am

    The cause:

    You encounter this error because a numeric value is being used in the as.Date() function. The warnings clearly shows that you miss the orignal date of the function.

    Solution:

    You have to specify the kind of Date for ‘x’ argument in as.Date() as the following:

    axis.Date(1, as.Date(sites$date, origin = "1970-01-01"))

    In addition, this probaly have been used to supplement or revise your initial query.

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  2. Tiago Rolland
    2022-05-25T21:22:32+00:00Added an answer on May 25, 2022 at 9:22 pm

    My R use 1970-01-01

    >as.Date(15103, origin="1970-01-01")
    [1] "2011-05-09"

    This matches the calculation from

    >as.numeric(as.Date(15103, origin="1970-01-01"))
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